{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "b3df9f25",
   "metadata": {},
   "source": [
    "* 时间:2022-10-25/week10\n",
    "* 记录人:张淼"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "453da5a9",
   "metadata": {},
   "source": [
    "# 上周回顾 \n",
    ">1. while 循环:while True -->无限循环\n",
    ">>1. 指定次数，while True 可以实现for循环的指定次数，增加一个count计数器即可。\n",
    ">>2. while True 一般与 用户输入 一起使用，让用户可以重复输入，知道某些条件成立结束输入(购物车)\n",
    ">2.购物车实践(平时作业)\n",
    "\n",
    "# 本周内容\n",
    "1. 元组\n",
    "2. 集合\n",
    "3. 字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "4eed474c",
   "metadata": {},
   "source": [
    "# 1. 元组(tuple)\n",
    "\n",
    ">1. 元组的基本内容(形态、定义)\n",
    ">2.元组的性质\n",
    ">>1. 有序性(indexing,sliceing)\n",
    ">>2. <font color=\"red\">**不可变性**</font>，元组没有:增、删、改\n",
    ">3.元组的一般方法"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "792b2d19",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1800001, 1800002, 1800003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网三_学号  =(1800001,1800002,1800003)\n",
    "print(网三_学号,type(网三_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "8b8ae173",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1900001, 1900002, 1900003) <class 'tuple'>\n"
     ]
    }
   ],
   "source": [
    "网二_学号 =(1900001,1900002,1900003)\n",
    "print(网二_学号,type(网二_学号))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "c4ca9f79",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1900001"
      ]
     },
     "execution_count": 15,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[0]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "3adc1e71",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(1900002, 1900003)"
      ]
     },
     "execution_count": 16,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网二_学号[1:]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "33ef46d1",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=25, tm_hour=15, tm_min=6, tm_sec=39, tm_wday=1, tm_yday=298, tm_isdst=0)"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 元组的实际案例\n",
    "import time\n",
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "20f80ff5",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on struct_time object:\n",
      "\n",
      "class struct_time(builtins.tuple)\n",
      " |  struct_time(iterable=(), /)\n",
      " |  \n",
      " |  The time value as returned by gmtime(), localtime(), and strptime(), and\n",
      " |  accepted by asctime(), mktime() and strftime().  May be considered as a\n",
      " |  sequence of 9 integers.\n",
      " |  \n",
      " |  Note that several fields' values are not the same as those defined by\n",
      " |  the C language standard for struct tm.  For example, the value of the\n",
      " |  field tm_year is the actual year, not year - 1900.  See individual\n",
      " |  fields' descriptions for details.\n",
      " |  \n",
      " |  Method resolution order:\n",
      " |      struct_time\n",
      " |      builtins.tuple\n",
      " |      builtins.object\n",
      " |  \n",
      " |  Methods defined here:\n",
      " |  \n",
      " |  __reduce__(...)\n",
      " |      Helper for pickle.\n",
      " |  \n",
      " |  __repr__(self, /)\n",
      " |      Return repr(self).\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Static methods defined here:\n",
      " |  \n",
      " |  __new__(*args, **kwargs) from builtins.type\n",
      " |      Create and return a new object.  See help(type) for accurate signature.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data descriptors defined here:\n",
      " |  \n",
      " |  tm_gmtoff\n",
      " |      offset from UTC in seconds\n",
      " |  \n",
      " |  tm_hour\n",
      " |      hours, range [0, 23]\n",
      " |  \n",
      " |  tm_isdst\n",
      " |      1 if summer time is in effect, 0 if not, and -1 if unknown\n",
      " |  \n",
      " |  tm_mday\n",
      " |      day of month, range [1, 31]\n",
      " |  \n",
      " |  tm_min\n",
      " |      minutes, range [0, 59]\n",
      " |  \n",
      " |  tm_mon\n",
      " |      month of year, range [1, 12]\n",
      " |  \n",
      " |  tm_sec\n",
      " |      seconds, range [0, 61])\n",
      " |  \n",
      " |  tm_wday\n",
      " |      day of week, range [0, 6], Monday is 0\n",
      " |  \n",
      " |  tm_yday\n",
      " |      day of year, range [1, 366]\n",
      " |  \n",
      " |  tm_year\n",
      " |      year, for example, 1993\n",
      " |  \n",
      " |  tm_zone\n",
      " |      abbreviation of timezone name\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Data and other attributes defined here:\n",
      " |  \n",
      " |  n_fields = 11\n",
      " |  \n",
      " |  n_sequence_fields = 9\n",
      " |  \n",
      " |  n_unnamed_fields = 0\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __add__(self, value, /)\n",
      " |      Return self+value.\n",
      " |  \n",
      " |  __contains__(self, key, /)\n",
      " |      Return key in self.\n",
      " |  \n",
      " |  __eq__(self, value, /)\n",
      " |      Return self==value.\n",
      " |  \n",
      " |  __ge__(self, value, /)\n",
      " |      Return self>=value.\n",
      " |  \n",
      " |  __getattribute__(self, name, /)\n",
      " |      Return getattr(self, name).\n",
      " |  \n",
      " |  __getitem__(self, key, /)\n",
      " |      Return self[key].\n",
      " |  \n",
      " |  __getnewargs__(self, /)\n",
      " |  \n",
      " |  __gt__(self, value, /)\n",
      " |      Return self>value.\n",
      " |  \n",
      " |  __hash__(self, /)\n",
      " |      Return hash(self).\n",
      " |  \n",
      " |  __iter__(self, /)\n",
      " |      Implement iter(self).\n",
      " |  \n",
      " |  __le__(self, value, /)\n",
      " |      Return self<=value.\n",
      " |  \n",
      " |  __len__(self, /)\n",
      " |      Return len(self).\n",
      " |  \n",
      " |  __lt__(self, value, /)\n",
      " |      Return self<value.\n",
      " |  \n",
      " |  __mul__(self, value, /)\n",
      " |      Return self*value.\n",
      " |  \n",
      " |  __ne__(self, value, /)\n",
      " |      Return self!=value.\n",
      " |  \n",
      " |  __rmul__(self, value, /)\n",
      " |      Return value*self.\n",
      " |  \n",
      " |  count(self, value, /)\n",
      " |      Return number of occurrences of value.\n",
      " |  \n",
      " |  index(self, value, start=0, stop=9223372036854775807, /)\n",
      " |      Return first index of value.\n",
      " |      \n",
      " |      Raises ValueError if the value is not present.\n",
      " |  \n",
      " |  ----------------------------------------------------------------------\n",
      " |  Class methods inherited from builtins.tuple:\n",
      " |  \n",
      " |  __class_getitem__(...) from builtins.type\n",
      " |      See PEP 585\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(time.localtime())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "fff06309",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4], [3, 4, 5, 6]) <class 'tuple'> 140392412496256\n",
      "[1, 2, 3, 4] 140392412557568\n"
     ]
    }
   ],
   "source": [
    "tuple_test =([1,2,3,4],[3,4,5,6])\n",
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "id": "f326a586",
   "metadata": {},
   "outputs": [],
   "source": [
    "tuple_test[0].append(100)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "d9659c87",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "([1, 2, 3, 4, 100], [3, 4, 5, 6]) <class 'tuple'> 140392412496256\n",
      "[1, 2, 3, 4, 100] 140392412557568\n"
     ]
    }
   ],
   "source": [
    "print(tuple_test,type(tuple_test),id(tuple_test))\n",
    "print(tuple_test[0],id(tuple_test[0]))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "bd0d6938",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 一般情况下，元组里面存放的是 常量(不可变) , 何为常量: 数字,字符串\n",
    "#                  不存放变量 如, 列表, 字典"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e423a68a",
   "metadata": {},
   "source": [
    "# 2.集合(sets)\n",
    ">1. 集合的基本概念\n",
    ">>1. 性质:  没有重复项\n",
    ">>2. 性质:  无序性\n",
    ">2. 集合的一般方法\n",
    ">>1. 集合的运算: & ,|\n",
    ">>2. 集合的一般方法: intersection"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "80cbccc7",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['apple', 'orange', 'apple', 'pear', 'orange', 'banana']\n",
      "{'orange', 'apple', 'pear', 'banbana'}\n"
     ]
    }
   ],
   "source": [
    "basket_lists =['apple','orange','apple','pear','orange','banana']\n",
    "basket_sets ={'apple','orange','apple','pear','orange','banbana'}\n",
    "print(basket_lists)\n",
    "print(basket_sets)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "id": "aad221b5",
   "metadata": {},
   "outputs": [],
   "source": [
    "舞蹈社 ={1801,1802,1803,1809,1811,1812}\n",
    "电竞社 ={1808,1822,1802,1801,1888,1899}"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "654c0d33",
   "metadata": {},
   "source": [
    "# · 集合的运算，交集"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "aef87f1d",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802}"
      ]
     },
     "execution_count": 25,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 & 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 26,
   "id": "f41cf6e8",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802}"
      ]
     },
     "execution_count": 26,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社.intersection(电竞社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "2ccc936b",
   "metadata": {},
   "source": [
    "# ·集合的或运算， 并集"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "id": "3a9b2ef1",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803, 1808, 1809, 1811, 1812, 1822, 1888, 1899}"
      ]
     },
     "execution_count": 27,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "舞蹈社 | 电竞社"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "id": "52e29dcb",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "10"
      ]
     },
     "execution_count": 28,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    " len(舞蹈社 | 电竞社)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "e2ad0920",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{1801, 1802, 1803, 1808, 1809, 1811, 1812, 1822, 1888, 1899}"
      ]
     },
     "execution_count": 29,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    " 舞蹈社.union(电竞社)"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "94dda687",
   "metadata": {},
   "source": [
    "# 3.字典(dict)\n",
    "\n",
    "> 1. 字典的基本概念:\n",
    ">> 1. 字典的性质:\n",
    ">>> 1. 无序性\n",
    ">>> 2. keys 是不可变的:就像列表、字符串等有序\n",
    ">>> 3. keys 是唯一的\n",
    ">> 2. 字典的形态\n",
    "> 2. 字典的一般方法\n",
    ">> 1. 字典的创造\n",
    ">> 2. 字典的函数和方法\n",
    ">>> 1. 增加\n",
    ">>> 2. 删除\n",
    ">>> 3. 修改"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "591e5c1e",
   "metadata": {},
   "source": [
    "# 3.1 字典的性质和概念"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "id": "70f1bbee",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新二班 ={\n",
    "    1800001:\"李一峰\",\n",
    "    1800002:\"jack\",\n",
    "    1800003:\"marry\",\n",
    "    1800004:\"周杰伦\",\n",
    "    \n",
    "}\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 31,
   "id": "6e7815d3",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李一峰', 1800002: 'jack', 1800003: 'marry', 1800004: '周杰伦'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "print(网新二班,type(网新二班))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 32,
   "id": "cc122389",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 因为学号是唯一的，可以作为字典的key"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "id": "29fe778f",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "{1800001: '李一峰', 1800002: 'jack', 1800003: 'marry', 1800004: '周杰伦', 1800005: 'jack'} <class 'dict'>\n"
     ]
    }
   ],
   "source": [
    "网新三班 ={\n",
    "    1800001:\"李一峰\",\n",
    "    1800002:\"jack\",\n",
    "    1800003:\"marry\",\n",
    "    1800004:\"周杰伦\",\n",
    "    1800005:\"jack\"\n",
    "    \n",
    "}\n",
    "print(网新三班,type(网新三班))\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 34,
   "id": "e40a25a4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'周杰伦'"
      ]
     },
     "execution_count": 34,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "# 字典的取值 :通过key 进行字典的取值，unlike 列表、元组和字符串通过index取值\n",
    "网新三班[1800004]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "2b3ea5a6",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新三班 ={\n",
    "    1800001:[\"李一峰\",\"广州\",\"男\",19,\"聊天记录\",\"朋友圈\"],\n",
    "    1800002:\"jack\",\n",
    "    1800003:\"marry\",\n",
    "    1800004:\"周杰伦\",\n",
    "    1800005:\"jack\"\n",
    "    \n",
    "}"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "c1d3dac4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['李一峰', '广州', '男', 19, '聊天记录', '朋友圈']"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新三班[1800001]"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "59844aac",
   "metadata": {},
   "source": [
    "## 3.2 字典的一般方法\n",
    "* 1.按照字典的形式直接创建(key:value)\n",
    "```\n",
    "网新二班 ={\n",
    "    stu1800001:\"李一峰\",\n",
    "    stu1800002:\"jack\",\n",
    "    stu1800003:\"marry\",\n",
    "    stu1800004:\"周杰伦\",\n",
    "    \n",
    "}\n",
    "```\n",
    "* 2. 使用diet()方法创建字典\n",
    "```\n",
    "网新四班 =dict(\n",
    "    stu1800001:\"李一峰\",\n",
    "    stu1800002:\"jack\",\n",
    "    stu1800003:\"marry\",\n",
    "    stu1800004:\"周杰伦\",\n",
    "    \n",
    ")\n",
    "```\n",
    "\n",
    "* 3.使用字典增加的方式创建字典\n",
    "\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 36,
   "id": "6829f8db",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用diet（）方法创建字典\n",
    "网新四班  =dict(\n",
    "      stu1800001=\"李一峰\",\n",
    "      stu1800002=\"jack\",\n",
    "      stu1800003=\"marry\",\n",
    "      stu1800004=\"周杰伦\",\n",
    ")  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 37,
   "id": "615fef71",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'jack',\n",
       " 'stu1800003': 'marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 37,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新四班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 38,
   "id": "cc91407e",
   "metadata": {},
   "outputs": [],
   "source": [
    "# 使用字典增加的方法创建字典 : dict[key] = value\n",
    "\n",
    "网新一班  ={}\n",
    "网新一班[\"stu1800001\"] = '李一峰'\n",
    "网新一班[\"stu1800002\"] = 'jack'\n",
    "网新一班[\"stu1800003\"] = 'marry'\n",
    "网新一班[\"stu1800004\"] = '周杰伦'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 39,
   "id": "391e24bb",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'jack',\n",
       " 'stu1800003': 'marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 39,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 41,
   "id": "1b735b84",
   "metadata": {},
   "outputs": [],
   "source": [
    "网新一班_keys = [\"stu1800001\",\"stu1800002\",\"stu1800003\",\"stu1800004\"]\n",
    "网新一班_values = ['李一峰','jack','marry','周杰伦']\n",
    "网新一班 = {}\n",
    "for i in range(4):\n",
    "    网新一班[网新一班_keys[i]] = 网新一班_values[i]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "id": "8af7bb70",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "{'stu1800001': '李一峰',\n",
       " 'stu1800002': 'jack',\n",
       " 'stu1800003': 'marry',\n",
       " 'stu1800004': '周杰伦'}"
      ]
     },
     "execution_count": 42,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "网新一班"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "11cdf7ca",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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